CVE-2026-33017

Langflow Code Injection Vulnerability

9.8

CVSS

99.8%

EPSS (exploit prob.)

100.0%

EPSS percentile

Yes

Actively exploited

Ransomware use

2026-03-25

Added

Summary

Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.

Affected software

Vendor: Langflow · Product: Langflow

Weakness types (CWE):

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in Langflow

CVE	Name	EPSS	Exploited
CVE-2025-3248	Langflow Missing Authentication Vulnerability	100.0%	Yes
CVE-2025-34291	Langflow Origin Validation Error Vulnerability	83.6%	Yes
CVE-2026-0770	Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability	53.5%	Yes
CVE-2026-55255	Langflow Authorization Bypass Through User-Controlled Key Vulnerability	29.1%	Yes

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